Sirik, S. V. (2015) “Estimation of the Accuracy of Finite-Element Petrov–Galerkin Method in Integrating the One-Dimensional Stationary Convection-Diffusion-Reaction Equation”, Ukrains’kyi Matematychnyi Zhurnal, 67(7), pp. 937-961. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/2034 (Accessed: 24April2024).